As I spend most of my spare time maintaining my own open source projects, and packaging them into Fedora, I did not have that much time to review a lot of packages myself. However, whenever I can, I strive to help in a few reviews, especially the ones related to C++ or Python languages, as well as related to the scientific (in particular, operations research, mathematics and physics), GIS or image handling arenas. For instance, I helped dis-embedding and packaging TCLAP from Hugin: https://bugzilla.redhat.com/show_bug.cgi?id=683591

I would not use my proven packager privileges (in other words, I do not intend) to update packages out of the above-detailed scope. I am already kept very busy with all that activity, without having to interfere with technologies with which I am less at ease.

I copy Petr, so as to suggest that he also applies to become a proven packager :)